Lock securing means



Jan. 20, 1959 w. B. IMHOFF, JR 2,839,353

' LOCK SECURING MEANS Filed Aug. '23, 1954 IN VENTOR. Y ZW/M J M m/f5,

ATTORNEY LOCK SECURING MEANS William B. Imholf, Jr., Springdale, Conn, assignor to The Yale & Towne Manufacturing Company, Stamford, Con-m, a corporation of Connecticut Application August 23, 1954, Serial No. 451,575

8 Claims. (Cl. 70-370) This invention relates to a lock of the type adapted for insertion in a hollow narrow door stile. In recent years, there has been developed a door formed mainly of glass, and having a very narrow, hollow frame or stile holding the glass in place. Stiles of the particular class present a very considerable lock mounting problem, and much effort has been applied by experts in the lock art toward the development of effective means for mounting a lock within a hollow stile.

I believe that through my invention I contribute mounting means of extreme simplicity and great effectiveness. Moreover, in using my invention, the door stile need not be equipped with any fastening means whatsoever, while the fastening means on the lock are, in essence, integral parts of the lock that would actually be supplied even were other fastening means to be utilized. In other words, I am able to fasten my lock within a hollow door stile through the utilization of structure that must actually be part of the lock itself, my invention requiring the addition of extremely simple and inexpensive means.

In essence, locks to which my invention relates, utilize v a case to which are secured an inside key control cylinder and an outside key controlled cylinder, although sometimes a thumb piece cylinder is used on the inside. These cylinders act to retract and project a lock bolt. As a feature of my invention, 1- utilize the cylinders to deter mine the position of the lock in the door, the cylinders coacting with the door for this purpose. Actually, the cylinders limit movement of the lock that is effected by means acting between the lock and the door stile. Thereby, the cylinders actually function as the lock positioning and retaining means through coaction with the door, while means preferably carried by the lock move the lock relatively to the door into final assembled position.

As a further particular feature of my invention the means for moving the lock relatively to the door are threaded means such as bolts, and I utilize the threaded openings in which the bolts are mounted for the purpose of fastening to the lock the usual decorative front that is normally applied to locks of the particular class.

I have thus outlined rather broadly the more important features of my invention in order that the detailed description thereof that follows may be better understood, and in order that my contribution to the art may be better appreciated. There are, of course, additional features of my invention that will be described hereinafter and which will form the subject of the claims appended here-to. Those skilled in the art will appreciate that the conception on which my disclosure is based may readily be utilized as a basis for the designing of other structures for carrying out the several purposes of my invention. It is important, therefor, that the claims be regarded as including such equivalent constructions as do not depart from the spirit and scope of our invention, in order to prevent the appropriation of my invention by those skilled in the art.

Referring now to the drawings:

Fig. 1 is an elevation of a standard glass door equipped atenr 2,8d9353 Patented Jan. 20,

the door showing the lock applied thereto.

Figs. 3 and 4 are cross-sections taken along lines 3-3 of Fig. 2.

Referring now more particularly to the drawings, the door to which my lock is secured comprises a plate of glass 10, about which is secured a hollow metal frame or stile 11. The stile 11 is generally formed of extruded aluminum with its cross section being that best seen in Figs. 3 and 4. Of course, the commercial extruded sections vary somewhat in form, but in general, they have the elements shown in Figs. 3 and 4. Thus, the stile has a face 12 and an opposed face 13, a bore 14 being formed in the face 12 and a bore 15 being formed in the face 13. The edge of the stile in which the lock is secured is formed with an opening 16, and the inner chamber to which this opening leads has a rear wall 17. The lock itself may be of any standard type having a main body or case B for housing a lock bolt 18. This lock bolt is adapted to be retracted and projected by either one of two key operated cylinders 19 and 20. Cylinder 19 is flanged as at 21 while cylinder 20 has a flange 22, the flanges being formed to overlie the openings 14 and 15 when the cylinders are threaded into the lock case B. v

The upper end and the lower end of the lock case are each formed with a threaded bore 25, and threaded into each of the bores 25 is a bolt 26 equipped with a socket head 27. Threaded bores 25 are adapted not only for the bolts 26, but are adapted also for upper and lower fastening screws 30 adapted to secure to the lock case a decorative front 31 that lies in alignment with the forward edge 32 of the door when the lock is assembled to the door as will be explained presently.

When it is desired to mount the lock within the door, the lock body B or case, without the cylinders or the decorative front 31, is inserted through the opening 16 into the hollow chamber of the door stile 11. The cylinders 19 and 20 are then screwed into the lock from each face of the stile, bringing the flanges 21 and 22 against the surfaces 12 and 13 of the stile. The two bolts 26 are in a retracted position relatively to the threaded bores 25, so that the parts are all positioned as shown in Fig. 3 with clearance between the cylinders 19 and 26 and bores 14 and 15. A socket wrench is then inserted into the socket head 27 of each of the bolts 26, and the bolts are rotated from the position shown in Fig. 3 to the position of Fig. 4, against rear wall 17 so as to force the lock case downwardly as shown in the drawings in Figs. 3 and 4, or outwardly of the hollow chamber of stile 11.

This movement of the case carries the cylinders 19 and lit to a position in which they are forcefully positioned against particular surfaces of the two openings 14 and 15 of the hollow stile. In other words, the cylinders, through their cooperation with the openings 14 and 15, limit the outward movement of the lock body or case B relatively to the stile. At this time, the decorative front 31 is supplied as shown in Fig. 4, and is secured by screws 30 entering the very same threaded opening of the lock case 25 in which the bolts 26 are mounted. The decorative front 31 lies in alignment with the edge 32 of the door and presents a finished appearance to the lock assembly, while at the same time preventing access to the socket heads 27.

Those skilled in the art will appreciate that threaded openings 25 would be necessary even though the bolts 26 were not utilized. They will appreciate further that the cylinders 19 and 20 are necessary, so that actually the to secure that lock firmly and securely and safely within a door. Those skilled in the art will further appreciate that while the securing means are adapted to secure the lock relatively to the door, they also act to secure the cylinders 19 and 2% against release rotation, thereby malting possible the omission of the usual detent screws in locks of the particular class.

The groove 35 in the front of the lock and the groove 36 in the door are merely for the purpose of housing weather stripping and are not pertinent to this invention.

I believe that the very considerable contribution that I have made to the art will be clearly understood.

I new claim:

1. in a lock of the class described, a lock case adapted for insertion into an opening formed in the edge of a door, a pair of lock cylinders secured to said case for movement integrally therewith as a part of said case with one of said cylinders traversing an opening in one face of the door and the other cylinder traversing an opening in the other face of the door, threaded means on said lock case in position to enact with the door when the case is in the door edge opening for pressing the lock case in a direction outwardly of the door, and said threaded means by pressing the case bringing said cylinders against edge surfaces of the openings they traverse whereby to fix the position of the case relatively to the door.

2. in a lock of the class described, a lock case adapted for insertion into an opening formed in the edge of a door, a pair of lock cylinders secured by threading to said case for movement integrally therewith as a part of said case with one of said cylinders traversing an opening in one face of the door and the other cylinder traversing an opening in the other face of the door, each of said cylinders having a flange overlying the said openings, and threaded means on said lock case for pressing the case in a direction outwardly of the door when the case is in the door edge opening to bring said cylinders against surfaces of the openings they traverse whereby to fix the position of the lock case relatively to the door.

3. In a lock of the class described, a lock case adapted for insertion into an opening formed in the edge of a door, a pair of loci; cylinders secured to said case with one of said cylinders traversing an opening in one face of the door and the other cylinder traversing an opening in the other face of the door, a bolt threaded through the upper part of the case and a second bolt threaded through the lower part of the case for pressing the case relatively to the door in a direction to bring said cylinders against particular surfaces of the openings they traverse to limit the outward movement of the case relatively to the door, a cover plate for the front of said case adapted for alignment with the edge of the door, and said cover plate covering the ends of said bolts when applied to the front of said case and lying in alignment with the edge of the door when said case is pressed to its full outward position relatively to said door.

4. In a lock of the class described, a lock case adapted for insertion into an opening formed in the edge of a door, a pair of lock cylinders secured to said case with one of said cylinders traversing an opening in one face of the door and the other cylinder traversing an opening in the other face of the door, bolts threaded through threaded bores of the case for pressing the case relatively to the door in a direction to bring said cylinders against partic ular surfaces of the openings they traverse to limit the outward movement of the case relatively to the door, a cover plate for the front of said case, and screws for securing said cover plate to said case entering the said threaded bores in said case.

5. In a lock of the class described, a lock case adapted for insertion into an opening formed in the edge of a door, a pair of lock cylinders secured to said case for movement integrally therewith as a part of said case with one of said cylinders traversing an opening in one face of the door and the other cylinder traversing an opening in the other face of the door, means acting between the lock case and door for pressing the case in a direction outwardly of the door, said means when so pressing the case bringing said cylinders against limiting surfaces of the openings they traverse whereby to fix the position of the case relatively to the door, a cover plate for the front of said case formed to fit the opening in the edge of the door, and means for supporting said cover plate on the front of said case whereby to hold the plate relatively to the door edge opening when the case is in fixed position on the door.

6. in a lock of the class described, a lock case adapted for insertion into an opening formed in the edge of a door, a pair of lock cylinders secured to said case for movement integrally therewith as a part of said case with one of said cylinders traversing an opening in one face of a door and the other cylinder traversing an opening in the other face of the door, means acting relatively to a part of the door to press in a direction outwardly of the door those parts of the loci: case that are above and below the axis of each cylinder, and said means by so acting holding the cylinders against edge surfaces of the openings they traverse whereby to fix the position of the case relatively to the door and in aligned relation to the door edge opening.

7. in a lock of the class described, a lock case adapted for insertion into an opening formed in the edge of a door, that door having in each face thereof an opening leading to the opening in the door edge, a pair of lock operating members adapted for assembly to the lock case by insertion through the openings in the faces of the door, each lock operating member having a body smaller than the door opening through which it is inserted, said lock operating members when assembled adapted to move integrally with the case as a part thereof, a pair of bolts threaded through opposed ends of the lock case for pressing the case and said lock operating members as a unit relatively to the door, and said pair of bolts by so pressing the case and members bringing the bodies of the lock operating members against the surfaces of the said openings in the faces of the door whereby to fix the position of the lock case relatively to the door.

8. In a lock of the class described, a lock case adapted for insertion into an opening formed in the edge of a door, a rear portion on the case moving toward an inner surface of the door when said case is so inserted, that door having in each face thereof an opening leading to the opening in the door edge, a pair of lock operating members adapted for assembly to the lock case by insertion through the openings in the faces of the door, each member being equipped with a flange or the like larger than the corresponding door opening whereby to overlie the opening when the lock operating member is inserted in the opening for assembly to the lock case, said lock operating members when assembled adapted to move integrally with the case as a part thereof, each lock operating member having a body smaller than the door opening through which it is inserted so that the rear portion of the case can move away from said inner surface of the door through movement of the members in the openings in the faces of the door, surfaces so positioned on the bodies of the lock operating members as to impinge against the surfaces of the said openings in the faces of the door when said rear portion of the lock case moves away from said inner surface of the door, and means acting between said rear por tion of the lock case and said inner door surface for pressing said portion away from that surface, whereby said means and lock operating members together will fur the position of the lock case relatively to the door.

Rixson July 24, 1923 Katz July 7, 1935 

